Itâ€™s been a year and a half since Microsoft released Windows 8 and its â€˜Modernâ€™ interface to the world, but weâ€™re still yet to see a touch-first interface emerge for the companyâ€™s Office suite, until now. In what can be only described as a slightly odd move, Microsoft Research has published an extensive document that details the companyâ€™s plans for ink-based computing but also happens to show screenshots of what appears to be our first glimpse at a truly touch-first Office interface. The PDF document, which goes into a lot of detail about how Microsoft believes ink based computing should work, shows many screenshots from the main Office products, including Word, PowerPoint, Outlook and Excel but specifically focuses on how…